<?php

/**
 * PHP Kill Process
 *
 * Sometimes, it can happen a script keeps running when it shouldn't, and it
 * won't stop after we close the browser, or shutdown the computer. Because it's
 * not always easy to use SSH there's a workaround.
 *
 * @author      Jensen Somers <php@jsomers.be>
 * @version     1.0
 */

class KillAllProcesses
{
    /**
     * Construct the class
     */
    function killallprocesses()
    {
        $this->listItems();
    }

    /**
     * List all the items
     */
    function listItems()
    {
        /*
         * PS   Unix command to report process status
         * -x   Select processes without controlling ttys
         *
         * Output will look like:
         *      16479 pts/13   S      0:00 -bash
         *      21944 pts/13   R      0:00 ps -x
         *
         */
        $output =   shell_exec('ps -x');

        $this->output($output);

        // Put each individual line into an array
        $array  =   explode("\n", $output);

        $this->doKill($array);
    }

    /**
     * Print the process list
     * @param   string  $output
     */
    function output($output)
    {
        print   "<pre>" . $output . "</pre>";
    }

    /**
     * Kill all the processes
     * It should be possible to filter in this, but I won't do it now.
     * @param   array   $array
     */
    function doKill($array)
    {
        /*
         * Because the first line of our $output will look like
         *        PID TTY      STAT   TIME COMMAND
         * we'll skip this one.
         */
        for ($i = 1; $i < count($array); $i++) {
            $id =   substr($array[$i], 0, strpos($array[$i], ' ?'));
            shell_exec('kill ' . $id);
        }
    }
}
